Koike, Yousuke
Current rating: 1483
Record: 3-4
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 54 | Koike, Takayuki (1637) | Won 2-0 | +201520 |
| 2sealed | 237 | Yokoyama, Akihiko (1518) | Won 2-1 | +181538 |
| 3sealed | 160 | Tutie, Takayuki (1536) | Lost 1-2 | -181520 |
| 4sealed | 239 | Mizuno, Shiori (1391) | Won 2-1 | +161536 |
| 5sealed | 193 | Ebihara, Daiki (1546) | Lost 0-2 | -181518 |
| 6sealed | 174 | Inoue, Hiroyuki0875 (1519) | Lost 0-2 | -181500 |
| 7sealed | 246 | Andou, Ryou (1519) | Lost 0-2 | -171483 |
| average opponent: 1524record: 3-4 | new rating: 1483 | |||